257151950 has 24 divisors (see below), whose sum is σ = 521785800. Its totient is φ = 93509600.

The previous prime is 257151941. The next prime is 257151967. The reversal of 257151950 is 59151752.

It is a super-2 number, since 2×257151950² = 132254250777605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257151950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233225 + ... + 234324.

It is an arithmetic number, because the mean of its divisors is an integer number (21741075).

Almost surely, 2^257151950 is an apocalyptic number.

257151950 is an abundant number, since it is smaller than the sum of its proper divisors (264633850).

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

257151950 is a wasteful number, since it uses less digits than its factorization.

257151950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467572 (or 467567 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 257151950 is about 16035.9580318732. The cubic root of 257151950 is about 635.9113951035.

The spelling of 257151950 in words is "two hundred fifty-seven million, one hundred fifty-one thousand, nine hundred fifty".