40251051 has 24 divisors (see below), whose sum is σ = 60727680. Its totient is φ = 25660800.

The previous prime is 40251047. The next prime is 40251059. The reversal of 40251051 is 15015204.

It is not a de Polignac number, because 40251051 - 2² = 40251047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40251059) 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, 24021 + ... + 25641.

It is an arithmetic number, because the mean of its divisors is an integer number (2530320).

Almost surely, 2^40251051 is an apocalyptic number.

40251051 is a deficient number, since it is larger than the sum of its proper divisors (20476629).

40251051 is a wasteful number, since it uses less digits than its factorization.

40251051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747 (or 1744 counting only the distinct ones).

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

The square root of 40251051 is about 6344.3716000878. The cubic root of 40251051 is about 342.7091829577.

Adding to 40251051 its reverse (15015204), we get a palindrome (55266255).

It can be divided in two parts, 402 and 51051, that multiplied together give a palindrome (20522502).

The spelling of 40251051 in words is "forty million, two hundred fifty-one thousand, fifty-one".