1625048957 has 4 divisors (see below), whose sum is σ = 1857198816. Its totient is φ = 1392899100.

The previous prime is 1625048941. The next prime is 1625048963. The reversal of 1625048957 is 7598405261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1625048957 - 2⁴ = 1625048941 is a prime.

It is a super-2 number, since 2×1625048957² = 5281568225293575698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625048987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116074919 + ... + 116074932.

It is an arithmetic number, because the mean of its divisors is an integer number (464299704).

Almost surely, 2^1625048957 is an apocalyptic number.

It is an amenable number.

1625048957 is a deficient number, since it is larger than the sum of its proper divisors (232149859).

1625048957 is an equidigital number, since it uses as much as digits as its factorization.

1625048957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232149858.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 1625048957 is about 40311.8959737693. The cubic root of 1625048957 is about 1175.6791503359.

The spelling of 1625048957 in words is "one billion, six hundred twenty-five million, forty-eight thousand, nine hundred fifty-seven".