125504554 has 16 divisors (see below), whose sum is σ = 222091776. Its totient is φ = 52052400.

The previous prime is 125504551. The next prime is 125504569. The reversal of 125504554 is 455405521.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (125504551) 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, 144157 + ... + 145024.

It is an arithmetic number, because the mean of its divisors is an integer number (13880736).

Almost surely, 2^125504554 is an apocalyptic number.

125504554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

125504554 is a deficient number, since it is larger than the sum of its proper divisors (96587222).

125504554 is a wasteful number, since it uses less digits than its factorization.

125504554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289221.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 125504554 is about 11202.8815043274. The cubic root of 125504554 is about 500.6718355364.

The spelling of 125504554 in words is "one hundred twenty-five million, five hundred four thousand, five hundred fifty-four".