725437554 has 8 divisors (see below), whose sum is σ = 1450875120. Its totient is φ = 241812516.

The previous prime is 725437507. The next prime is 725437567. The reversal of 725437554 is 455734527.

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

725437554 is an admirable 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, 60453124 + ... + 60453135.

It is an arithmetic number, because the mean of its divisors is an integer number (181359390).

Almost surely, 2^725437554 is an apocalyptic number.

725437554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725437554 is a wasteful number, since it uses less digits than its factorization.

725437554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120906264.

The product of its digits is 588000, while the sum is 42.

The square root of 725437554 is about 26933.9479839106. The cubic root of 725437554 is about 898.5315782955.

The spelling of 725437554 in words is "seven hundred twenty-five million, four hundred thirty-seven thousand, five hundred fifty-four".