45049951 has 2 divisors, whose sum is σ = 45049952. Its totient is φ = 45049950.

The previous prime is 45049937. The next prime is 45049973. The reversal of 45049951 is 15994054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45049951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45049951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45049051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22524975 + 22524976.

It is an arithmetic number, because the mean of its divisors is an integer number (22524976).

Almost surely, 2^45049951 is an apocalyptic number.

45049951 is a deficient number, since it is larger than the sum of its proper divisors (1).

45049951 is an equidigital number, since it uses as much as digits as its factorization.

45049951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 45049951 is about 6711.9260276019. The cubic root of 45049951 is about 355.8208894702.

The spelling of 45049951 in words is "forty-five million, forty-nine thousand, nine hundred fifty-one".