1061554251 has 16 divisors (see below), whose sum is σ = 1466553600. Its totient is φ = 682207008.

The previous prime is 1061554229. The next prime is 1061554261. The reversal of 1061554251 is 1524551601.

It is not a de Polignac number, because 1061554251 - 2¹⁸ = 1061292107 is a prime.

It is a super-2 number, since 2×1061554251² = 2253794855632342002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061554261) 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, 46860 + ... + 65718.

It is an arithmetic number, because the mean of its divisors is an integer number (91659600).

Almost surely, 2^1061554251 is an apocalyptic number.

1061554251 is a deficient number, since it is larger than the sum of its proper divisors (404999349).

1061554251 is a wasteful number, since it uses less digits than its factorization.

1061554251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1061554251 is about 32581.5016688918. The cubic root of 1061554251 is about 1020.1109231541.

The spelling of 1061554251 in words is "one billion, sixty-one million, five hundred fifty-four thousand, two hundred fifty-one".