1255820152 has 32 divisors (see below), whose sum is σ = 2370448080. Its totient is φ = 623715840.

The previous prime is 1255820101. The next prime is 1255820161. The reversal of 1255820152 is 2510285521.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239198 + ... + 1240210.

Almost surely, 2^1255820152 is an apocalyptic number.

It is an amenable number.

1255820152 is a deficient number, since it is larger than the sum of its proper divisors (1114627928).

1255820152 is a wasteful number, since it uses less digits than its factorization.

1255820152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 1255820152 is about 35437.5528500488. The cubic root of 1255820152 is about 1078.8866418567.

The spelling of 1255820152 in words is "one billion, two hundred fifty-five million, eight hundred twenty thousand, one hundred fifty-two".