96557421 has 4 divisors (see below), whose sum is σ = 128743232. Its totient is φ = 64371612.

The previous prime is 96557413. The next prime is 96557423. The reversal of 96557421 is 12475569.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 96557421 - 2³ = 96557413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 96557421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96557423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16092901 + ... + 16092906.

It is an arithmetic number, because the mean of its divisors is an integer number (32185808).

Almost surely, 2^96557421 is an apocalyptic number.

It is an amenable number.

96557421 is a deficient number, since it is larger than the sum of its proper divisors (32185811).

96557421 is a wasteful number, since it uses less digits than its factorization.

96557421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32185810.

The product of its digits is 75600, while the sum is 39.

The square root of 96557421 is about 9826.3635695002. The cubic root of 96557421 is about 458.7702202354.

The spelling of 96557421 in words is "ninety-six million, five hundred fifty-seven thousand, four hundred twenty-one".