125415052444 has 24 divisors (see below), whose sum is σ = 245899786608. Its totient is φ = 55466115840.

The previous prime is 125415052423. The next prime is 125415052447. The reversal of 125415052444 is 444250514521.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125415052447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38516509 + ... + 38519764.

It is an arithmetic number, because the mean of its divisors is an integer number (10245824442).

Almost surely, 2^125415052444 is an apocalyptic number.

It is an amenable number.

125415052444 is a deficient number, since it is larger than the sum of its proper divisors (120484734164).

125415052444 is a wasteful number, since it uses less digits than its factorization.

125415052444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77036325 (or 77036323 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 125415052444 its reverse (444250514521), we get a palindrome (569665566965).

The spelling of 125415052444 in words is "one hundred twenty-five billion, four hundred fifteen million, fifty-two thousand, four hundred forty-four".