252342542551 has 16 divisors (see below), whose sum is σ = 278746997760. Its totient is φ = 226518387520.

The previous prime is 252342542509. The next prime is 252342542561. The reversal of 252342542551 is 155245243252.

It is a cyclic number.

It is not a de Polignac number, because 252342542551 - 2¹³ = 252342534359 is a prime.

It is a super-2 number, since 2×252342542551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252342542561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674330 + ... + 1818808.

It is an arithmetic number, because the mean of its divisors is an integer number (17421687360).

Almost surely, 2^252342542551 is an apocalyptic number.

252342542551 is a deficient number, since it is larger than the sum of its proper divisors (26404455209).

252342542551 is a wasteful number, since it uses less digits than its factorization.

252342542551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146486.

The product of its digits is 480000, while the sum is 40.

The spelling of 252342542551 in words is "two hundred fifty-two billion, three hundred forty-two million, five hundred forty-two thousand, five hundred fifty-one".