250120661450 has 48 divisors (see below), whose sum is σ = 507606350400. Its totient is φ = 90937056000.

The previous prime is 250120661431. The next prime is 250120661459. The reversal of 250120661450 is 54166021052.

It is a super-2 number, since 2×250120661450² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (250120661459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3372770 + ... + 3446130.

It is an arithmetic number, because the mean of its divisors is an integer number (10575132300).

Almost surely, 2^250120661450 is an apocalyptic number.

250120661450 is an abundant number, since it is smaller than the sum of its proper divisors (257485688950).

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

250120661450 is a wasteful number, since it uses less digits than its factorization.

250120661450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79583 (or 79578 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 250120661450 in words is "two hundred fifty billion, one hundred twenty million, six hundred sixty-one thousand, four hundred fifty".