561252151562 has 4 divisors (see below), whose sum is σ = 841878227346. Its totient is φ = 280626075780.

The previous prime is 561252151549. The next prime is 561252151571. The reversal of 561252151562 is 265151252165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 265151252165 = 5 ⋅53030250433.

It can be written as a sum of positive squares in only one way, i.e., 467512695001 + 93739456561 = 683749^2 + 306169^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140313037889 + ... + 140313037892.

Almost surely, 2^561252151562 is an apocalyptic number.

561252151562 is a deficient number, since it is larger than the sum of its proper divisors (280626075784).

561252151562 is a wasteful number, since it uses less digits than its factorization.

561252151562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280626075783.

The product of its digits is 180000, while the sum is 41.

The spelling of 561252151562 in words is "five hundred sixty-one billion, two hundred fifty-two million, one hundred fifty-one thousand, five hundred sixty-two".