725874378455 has 32 divisors (see below), whose sum is σ = 922955451264. Its totient is φ = 546933252096.

The previous prime is 725874378431. The next prime is 725874378473. The reversal of 725874378455 is 554873478527.

It is a cyclic number.

It is not a de Polignac number, because 725874378455 - 2¹² = 725874374359 is a prime.

It is a super-2 number, since 2×725874378455² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725874378391 and 725874378400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032379 + ... + 2362691.

It is an arithmetic number, because the mean of its divisors is an integer number (28842357852).

Almost surely, 2^725874378455 is an apocalyptic number.

725874378455 is a deficient number, since it is larger than the sum of its proper divisors (197081072809).

725874378455 is a wasteful number, since it uses less digits than its factorization.

725874378455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330635.

The product of its digits is 263424000, while the sum is 65.

The spelling of 725874378455 in words is "seven hundred twenty-five billion, eight hundred seventy-four million, three hundred seventy-eight thousand, four hundred fifty-five".