253551045 has 16 divisors (see below), whose sum is σ = 442562112. Its totient is φ = 122933760.

The previous prime is 253551013. The next prime is 253551059. The reversal of 253551045 is 540155352.

It is a happy number.

It is not a de Polignac number, because 253551045 - 2⁵ = 253551013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768172 + ... + 768501.

It is an arithmetic number, because the mean of its divisors is an integer number (27660132).

Almost surely, 2^253551045 is an apocalyptic number.

It is an amenable number.

253551045 is a deficient number, since it is larger than the sum of its proper divisors (189011067).

253551045 is a wasteful number, since it uses less digits than its factorization.

253551045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536692.

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

The square root of 253551045 is about 15923.2862500176. The cubic root of 253551045 is about 632.9292040148.

The spelling of 253551045 in words is "two hundred fifty-three million, five hundred fifty-one thousand, forty-five".