425401615 has 8 divisors (see below), whose sum is σ = 511003008. Its totient is φ = 339973920.

The previous prime is 425401607. The next prime is 425401619. The reversal of 425401615 is 516104524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425401615 - 2³ = 425401607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425401619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37972 + ... + 47881.

It is an arithmetic number, because the mean of its divisors is an integer number (63875376).

Almost surely, 2^425401615 is an apocalyptic number.

425401615 is a deficient number, since it is larger than the sum of its proper divisors (85601393).

425401615 is an equidigital number, since it uses as much as digits as its factorization.

425401615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86849.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 425401615 is about 20625.2664225217. The cubic root of 425401615 is about 752.0840495454.

The spelling of 425401615 in words is "four hundred twenty-five million, four hundred one thousand, six hundred fifteen".