45012501 has 24 divisors (see below), whose sum is σ = 68708640. Its totient is φ = 28317600.

The previous prime is 45012491. The next prime is 45012523. The reversal of 45012501 is 10521054.

It is not a de Polignac number, because 45012501 - 2¹¹ = 45010453 is a prime.

It is a super-2 number, since 2×45012501² = 4052250492550002, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45012581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78546 + ... + 79116.

It is an arithmetic number, because the mean of its divisors is an integer number (2862860).

Almost surely, 2^45012501 is an apocalyptic number.

It is an amenable number.

45012501 is a deficient number, since it is larger than the sum of its proper divisors (23696139).

45012501 is a wasteful number, since it uses less digits than its factorization.

45012501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 45012501 is about 6709.1356373232. The cubic root of 45012501 is about 355.7222642315.

Adding to 45012501 its reverse (10521054), we get a palindrome (55533555).

The spelling of 45012501 in words is "forty-five million, twelve thousand, five hundred one".