52154405 has 4 divisors (see below), whose sum is σ = 62585292. Its totient is φ = 41723520.

The previous prime is 52154309. The next prime is 52154437. The reversal of 52154405 is 50445125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9042049 + 43112356 = 3007^2 + 6566^2 .

It is not a de Polignac number, because 52154405 - 2¹⁸ = 51892261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215436 + ... + 5215445.

It is an arithmetic number, because the mean of its divisors is an integer number (15646323).

Almost surely, 2^52154405 is an apocalyptic number.

It is an amenable number.

52154405 is a deficient number, since it is larger than the sum of its proper divisors (10430887).

52154405 is a wasteful number, since it uses less digits than its factorization.

52154405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430886.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 52154405 is about 7221.8006757318. The cubic root of 52154405 is about 373.6201854884.

The spelling of 52154405 in words is "fifty-two million, one hundred fifty-four thousand, four hundred five".