11725515400 has 48 divisors (see below), whose sum is σ = 28865468340. Its totient is φ = 4414310400.

The previous prime is 11725515371. The next prime is 11725515407. The reversal of 11725515400 is 451552711.

It can be written as a sum of positive squares in 6 ways, for example, as 4506973956 + 7218541444 = 67134^2 + 84962^2 .

It is a super-2 number, since 2×11725515400² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11725515407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1720941 + ... + 1727740.

Almost surely, 2^11725515400 is an apocalyptic number.

11725515400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11725515400 is an abundant number, since it is smaller than the sum of its proper divisors (17139952940).

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

11725515400 is a wasteful number, since it uses less digits than its factorization.

11725515400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448714 (or 3448705 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 11725515400 in words is "eleven billion, seven hundred twenty-five million, five hundred fifteen thousand, four hundred".