162400425 has 48 divisors (see below), whose sum is σ = 295963200. Its totient is φ = 77920000.

The previous prime is 162400397. The next prime is 162400453. The reversal of 162400425 is 524004261.

It is an interprime number because it is at equal distance from previous prime (162400397) and next prime (162400453).

It is not a de Polignac number, because 162400425 - 2¹² = 162396329 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 162400395 and 162400404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82351 + ... + 84299.

It is an arithmetic number, because the mean of its divisors is an integer number (6165900).

Almost surely, 2^162400425 is an apocalyptic number.

162400425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162400425 is a deficient number, since it is larger than the sum of its proper divisors (133562775).

162400425 is a wasteful number, since it uses less digits than its factorization.

162400425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 162400425 is about 12743.6425326513. The cubic root of 162400425 is about 545.5849567597.

Adding to 162400425 its reverse (524004261), we get a palindrome (686404686).

It can be divided in two parts, 1 and 62400425, that added together give a palindrome (62400426).

The spelling of 162400425 in words is "one hundred sixty-two million, four hundred thousand, four hundred twenty-five".