42502453 has 6 divisors (see below), whose sum is σ = 49441686. Its totient is φ = 36430632.

The previous prime is 42502451. The next prime is 42502463. The reversal of 42502453 is 35420524.

It can be written as a sum of positive squares in only one way, i.e., 42289009 + 213444 = 6503^2 + 462^2 .

It is not a de Polignac number, because 42502453 - 2¹ = 42502451 is a prime.

It is a super-2 number, since 2×42502453² = 3612917022034418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42502451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 433650 + ... + 433747.

It is an arithmetic number, because the mean of its divisors is an integer number (8240281).

Almost surely, 2^42502453 is an apocalyptic number.

It is an amenable number.

42502453 is a deficient number, since it is larger than the sum of its proper divisors (6939233).

42502453 is an equidigital number, since it uses as much as digits as its factorization.

42502453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867411 (or 867404 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42502453 is about 6519.3905389998. The cubic root of 42502453 is about 348.9833162524.

Adding to 42502453 its reverse (35420524), we get a palindrome (77922977).

The spelling of 42502453 in words is "forty-two million, five hundred two thousand, four hundred fifty-three".