253550451 has 48 divisors (see below), whose sum is σ = 443888640. Its totient is φ = 127149120.

The previous prime is 253550419. The next prime is 253550483. The reversal of 253550451 is 154055352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253550419) and next prime (253550483).

It is not a de Polignac number, because 253550451 - 2⁵ = 253550419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253550491) 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 47 ways as a sum of consecutive naturals, for example, 44190 + ... + 49596.

It is an arithmetic number, because the mean of its divisors is an integer number (9247680).

Almost surely, 2^253550451 is an apocalyptic number.

253550451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253550451 is a deficient number, since it is larger than the sum of its proper divisors (190338189).

253550451 is a wasteful number, since it uses less digits than its factorization.

253550451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464 (or 5457 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 253550451 is about 15923.2675980780. The cubic root of 253550451 is about 632.9287097550.

The spelling of 253550451 in words is "two hundred fifty-three million, five hundred fifty thousand, four hundred fifty-one".