45972551 has 2 divisors, whose sum is σ = 45972552. Its totient is φ = 45972550.

The previous prime is 45972527. The next prime is 45972559. The reversal of 45972551 is 15527954.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45972551 is a prime.

It is a super-2 number, since 2×45972551² = 4226950890895202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45972559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22986275 + 22986276.

It is an arithmetic number, because the mean of its divisors is an integer number (22986276).

Almost surely, 2^45972551 is an apocalyptic number.

45972551 is a deficient number, since it is larger than the sum of its proper divisors (1).

45972551 is an equidigital number, since it uses as much as digits as its factorization.

45972551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 38.

The square root of 45972551 is about 6780.3061140335. The cubic root of 45972551 is about 358.2335040218.

The spelling of 45972551 in words is "forty-five million, nine hundred seventy-two thousand, five hundred fifty-one".